LT1-LT4 Modifications 1993-97 Gen II Small Block V8

lt1 stumbling/bogging problem

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Old 03-14-2012, 10:09 AM
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Default lt1 stumbling/bogging problem

Ok so I just finished replacing my header gaskets plugs and wires and new o2s, new coolant, and delete the AIR system just didn't plug the AIR whole on the pump, well it took me 20 hours with all the limited space and supply well anyways I started the car and it seemed to idle fine so I took it for a drive, to my surprise it would kinda bog during first and around 2nd too and it a little on the rest of the gears, so I was skeptical what it could be

So I looked around and noticed one of the plugs would shoot blue sparks so I was I probably didnt made the plug wire "click" so I took it out and again and made sure it was in their tight and it still gave me the blue sparks, the sparks come around were the spark plug meets the motor, exactly were the you tight in the plugs the octagon box shape socket


any suggestions, bad plug or wire?
Old 03-14-2012, 10:12 AM
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Possible cracked plug. Take out and examine.
Old 03-14-2012, 10:14 AM
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yeah was probably going to do that would that definitely cause the bogging?
Old 03-14-2012, 11:42 AM
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Depends on how badly the bog is you are experiencing. Going down one cylinder is pretty subtle, yet noticeable. If you are experiencing severe power loss then multiple cylinders are involved. My suspicions would be burnt plug wires or O2 problems.
You say it ran fine, at first... I would let engine cool completely down, start it and drive again and get on the gas a little to see if it stumbles, if it does not stumble until engine is warm then it would be a good indication of O2's. You can unplug them and try again to see if stumble goes away.
Old 03-15-2012, 09:18 AM
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02s are brand new delphi brand?



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